Cutter Disc With Shearing Governor For Plant Mulching
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Solution Overview
Problem
Existing plant material processing devices using cutter discs often jam and are inefficient in processing input material from the top side, especially when dealing with standing timber and brush.
Innovation Solution
An apparatus featuring a cutter disc with radially spaced teeth and a shearing governor with transverse cutting edges and a governing surface that guides plant material towards the axis of rotation, reducing jamming and enhancing processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cutter disc is used for mulching trees from the top side, then processing capability is provided, but the device jams and is incapable of quickly receiving and processing input plant material
Solution Approach 1:
The cutter disc is segmented into multiple radially spaced teeth instead of a continuous blade, allowing material to pass through gaps between teeth while cutting. This segmentation prevents jamming by providing escape paths for processed material and reduces clogging during top-side mulching operations.
Solution Approach 2:
Instead of using the bottom of the cutter disc for primary cutting (conventional approach), the invention inverts the design by making the upper side with radially spaced teeth the primary cutting surface. This inversion allows material to be fed from the top and processed through the spaced teeth, preventing jamming while maintaining cutting effectiveness.
2Productivity
If the cutter disc rotates to process plant material, then cutting action is performed, but material accumulates and causes jamming
Solution Approach 1:
The radially spaced teeth create segmented cutting zones with gaps between them, allowing processed material to escape through the spaces rather than accumulating on a continuous blade surface. This segmentation prevents material buildup while maintaining effective cutting across multiple zones.
Solution Approach 2:
The shearing governor acts as an intermediary component that works in conjunction with the cutter disc teeth to shear material. This intermediary mechanism helps control material flow and prevents accumulation by providing an additional cutting stage that clears processed material from the path.
3Productivity
If a shearing governor with cutting edges is added adjacent to cutting paths, then shearing capability is enhanced, but device complexity increases
Solution Approach 1:
The shearing governor is merged with the base structure rather than being a separate independent unit, integrating the shearing function into the existing apparatus. This merging approach enhances shearing capability while minimizing the increase in overall device complexity by utilizing the base as part of the shearing mechanism.
Solution Approach 2:
The base structure serves multiple functions: it supports the cutter disc, provides the shearing governor with cutting edges, and acts as the structural framework. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity while enhancing overall shearing capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus effectively processes plant material by reducing jamming and increasing productivity, allowing for high-throughput mulching or shearing without material accumulation, especially during top-side disc mulching operations.
Implementation Method 1
each of the plurality of teeth configured to travel on a respective cutting path to engage and shear the plant material when the cutter disc rotates
Implementation Method 2
a governing surface configured to guide the plant material when the cutter disc rotates
Data Source
AI summary
An apparatus for facilitating processing of plant material is disclosed. The apparatus includes a base, a cutter disc rotatably coupled to the base such that the cutter disc is configured to rotate about an axis of rotation relative to the base, the cutter disc having an upper side including a plurality of radially spaced teeth, each of the plurality of teeth configured to travel on a respective cutting path to engage and shear the plant material when the cutter disc rotates. The apparatus includes a shearing governor rigidly coupled to the base, the shearing governor including one or more cutting edges, each of the one or more cutting edges extending adjacent to the cutting paths of at least two of the plurality of teeth and configured to shear the plant material when the cutter disc rotates. Other systems and apparatuses are disclosed.